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(A): Diamond is harder than silica (R)...

(A): Diamond is harder than silica
(R): The `Si-O-Si` bonds in silica are weaker than `C-C` bonds in diamond 

A

A and R are true, R explains A

B

A and R are true, R does not explain A

C

A is true, but R is false

D

A is false, but R is true

Text Solution

Verified by Experts

The correct Answer is:
B
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What is the bond angle in diamond?

Assertion (A) : Diamond is one of the hardest materials. Reason (R): The C-C bonds in diamond are very strong and requires large amounts of energy to distroy.

Knowledge Check

  • C-C bond length in Diamond is

    A
    `1.33Å`
    B
    `1.54Å`
    C
    `1.20Å`
    D
    `1.8Å`

  • C-O-C bond in ethers can be cleaved by

    A
    `KMnO_4`
    B
    `LiAlH_5`
    C
    `KOH`
    D
    `HI`

  • C-O-C bond in ethers can be cleaved by

    A
    `KMnO_(4)`
    B
    `LiAlH_(4)`
    C
    KOH
    D
    HI

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    What is the bond length in diamond?

    (A) : P_(4) is more reactive than N_(2) . (R ) : P-P bonds are relatively weaker than N-=N

    The C-C bond distance is largest in

    The C-C bond distance is largest in

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